在强流脉冲电子束改性实验基础上,通过数值计算方法对Al-Si-Pb合金的温度场和应力场进行模拟,给出了最先熔化的位置、形成熔坑的最大深度、熔化区的最大深度以及准静态热应力的分布.通过合金的数值模拟结果和实验结果对比,揭示了表面熔坑的形成机制和剖面硬度分布特征.
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